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A blue line grouper (Cephalopholis formosa) swims on a reef in the Lesser Sunda Islands of Indonesia.
A messmate pipefish, Corythoichthys intestinalis, swims over the seafloor in Alor, Indonesia.
A young painted frogfish (Antennarius pictus) sits on the volcanic seafloor of Lembeh Strait, Indonesia.
A crown of thorns starfish (Acanthaster planci) feeds on a coral reef growing near an island in the Banda Sea, Indonesia.
A well-camouflaged tasseled wobbegong shark (Eucrossorhinus dasypogon) lies on the sandy seafloor of Raja Ampat, Indonesia.
Detail of the colorful tentacles on a bulbed anemone, Entacmaea quadricolor, growing on a reef near Alor in Indonesia.
A beautiful feather duster worm, Bispira sp., grows on a coral reef in Alor, Indonesia.
A colorful nudibranch, Phyllidia varicosa, crawls on a black sand seafloor in Alor, Indonesia.
A large roughtail stingray, Dasyatis centroura, lays on the seagrass-covered seafloor of Turneffe Atoll off the coast of Belize. This reef is part of the massive Mesoamerican Reef System in the Caribbean Sea, the second largest barrier reef on Earth.
Colorful anthias fish swim above a beautiful coral reef in Alor, Indonesia.
A pink anemonefish, Amphiprion perideraion, swims above its beautiful host anemone in Wakatobi National Park, Indonesia.
A colorful West Indian starfish, Oreaster reticulatus, crawls over a shallow, sandy seafloor in Turneffe Atoll in the Caribbean Sea. This reef is part of the massive Mesoamerican Reef System, the second largest barrier reef on Earth.
Colorful chocolate chip sea stars, Protoreaster nodosus, cover the seafloor in a seagrass meadow in Wakatobi National Park, Indonesia.
A large roughtail stingray, Dasyatis centroura, lays on the seagrass-covered seafloor of Turneffe Atoll off the coast of Belize. This reef is part of the massive Mesoamerican Reef System in the Caribbean Sea, the second largest barrier reef on Earth.
Soft coral colonies, Sinularia sp., thrive on a reef found among the remote, tropical islands of Raja Ampat, Indonesia.
A pair of vibrant nudibranchs, Nembrotha kubaryana, mate on a coral reef in the remote, tropical islands of Raja Ampat, Indonesia.
A vibrant nudibranch, Phyllidia sp., feeds on sponges on a coral reef in the remote, tropical islands of Raja Ampat, Indonesia.
A vibrant soft coral, Dendronephthya sp., grows amid the remote, tropical islands of Raja Ampat, Indonesia.
Mother and calf humpback whales, Megaptera novaeangliae, swim in the clear, blue waters of the Caribbean Sea.
A young humpback whale, Megaptera novaeangliae, breaches out of the blue waters of the Caribbean Sea.
Detail of coral polyps growing on a healthy reef in Raja Ampat, Indonesia.
A school of silversides swims in the shallows in a remote part of Raja Ampat, Indonesia.
A banded sea krait, Laticauda colubrina, searches for prey on a coral reef in Raja Ampat, Indonesia. This tropical area is known for its extraordinary marine biodiversity and is a popular destination for divers and snorkelers.
Small cardinalfish hover amid mangrove prop roots in a remote part of Raja Ampat, Indonesia.
Healthy corals thrive along the edge of a mangrove forest in a remote part of Raja Ampat, Indonesia.
Beams of light descend through a wooden jetty in the Dampier Strait, Raja Ampat, Indonesia. This tropical area is known for its extraordinary marine biodiversity and is a popular destination for divers and snorkelers.
Symbiotic anemones cover the shell of a hermit crab, Dardanus pedunculatus, in Komodo National Park, Indonesia. This tropical area in the Lesser Sunda Islands is known for both its amazing marine biodiversity as well its infamous dragons.
A hawksbill sea turtle, Eretmochelys imbricata, swims over a beautiful reef in Komodo National Park, Indonesia. This tropical area in the Lesser Sunda Islands is known for both its amazing marine biodiversity as well its infamous dragons.
A hawksbill sea turtle, Eretmochelys imbricata, lays on a beautiful reef in Komodo National Park, Indonesia. This tropical area in the Lesser Sunda Islands is known for both its amazing marine biodiversity as well its infamous dragons.
A magnificent sea anemone, Heteractis magnifica, grows on a reef in Komodo National Park, Indonesia. This tropical area in the Lesser Sunda Islands is known for both its amazing marine biodiversity as well its infamous dragons.
A colorful nudibranch, Hypselodoris tryoni, crawls across a sandy sea floor in Komodo National Park, Indonesia. This tropical area in the Lesser Sunda Islands is known for both its amazing marine biodiversity as well its infamous dragons.
A hairy frogfish, Antennarius striatus, lies on the dark, sandy seafloor in Lembeh Strait, Indonesia.
A beautiful coral reef thrives around an island in a remote part of Raja Ampat, Indonesia.
A well-camouflaged Mototi octopus, Octopus sp., hides in plain view on the sandy seafloor in Lembeh Strait, Indonesia.
Beautiful corals and reef fish thrive amid the tropical islands of Raja Ampat, Indonesia.
A beautiful coral reef thrives around an island in a remote part of Raja Ampat, Indonesia.
A beautiful coral reef thrives around an island in a remote part of Raja Ampat, Indonesia.
A beautiful coral reef thrives around an island in a remote part of Raja Ampat, Indonesia.
A beautiful coral reef thrives amid the tropical islands of Raja Ampat, Indonesia.
Humbug damselfish hover above protective corals in Raja Ampat, Indonesia.
A huge giant clam, Tridacna gigas, grows on a shallow coral reef amid the tropical islands of Raja Ampat, Indonesia.
Beautiful mushroom coral and reef fish thrive amid the tropical islands of Raja Ampat, Indonesia.
A colorful coral reef grows amid the tropical islands of Raja Ampat, Indonesia.
A juvenile painted spiny lobster, Panulirus versicolor, crawls out of a reef crevice amid the islands of Raja Ampat, Indonesia.
Vibrant soft corals, Dendronephthya sp., thrive among the islands of Raja Ampat, Indonesia.
A massive giant clam, Tridacna gigas, grows on a shallow coral reef in Raja Ampat, Indonesia.
A juvenile painted spiny lobster, Panulirus versicolor, inhabits a crevice on a reef amid the tropical islands of Raja Ampat, Indonesia.
A colorful ornate ghost pipefish, Solenostomus paradoxus, hovers over a coral reef in Komodo National Park, Indonesia.
A beautiful nudibranch, Doriprismatica atromarginata, feeds on a reef in Indonesia's Banda Sea.
A well-camouflaged flasher scorpionfish, Scorpaenopsis macrochir, lies on a black sand slope just outside of Komodo National Park, Indonesia.
Detail of a scorpionfish's face in Indonesia's Banda Sea.
A cute red-spotted blenny, Blenniella chrysospilos, looks out from its protective home on a coral reef in Indonesia. This combtooth blenny feeds on algae.
A barred-fin moray eel, Gymnothorax zonipectus, is found on a coral reef in Komodo National Park, Indonesia.
A bright yellow crinoid clings to a healthy coral reef near Alor, Indonesia.
A black-banded sea krait, Laticauda semifasciata, swims over beautiful corals off the remote island of Manuk in the Banda Sea, Indonesia. This volcanic island is known as the island of the snakes.
A spotted porcelain crab, Neopetrolisthes maculatus, snuggles into its host anemone in Komodo National Park, Indonesia.
Detail of a reef-building coral colony growing on a healthy reef in Komodo National Park, Indonesia.
A black-banded sea krait, Laticauda semifasciata, swims over beautiful corals off the remote island of Manuk in the Banda Sea, Indonesia. This volcanic island is known as the island of the snakes.
A greater blue-ring octopus, Hapalochlaena lunulata, crawls across a coral reef in Komodo National Park, Indonesia. There are several blue-ring octopus species and all of them are extremely venomous.
A beautiful coral reef thrives in shallow water in Indonesia's Banda Sea. This part of eastern Indonesia is home to part of the world's greatest marine biodiversity.
A healthy coral reef thrives in Komodo National Park, Indonesia.
A beautiful coral reef thrives in shallow water in Indonesia's Banda Sea. This part of eastern Indonesia is home to part of the world's greatest marine biodiversity.
A tiger cardinal broods eggs in it's mouth.
A humpback whale and her calf at the surface.
A humpback whale breaches completely out of the water.
A cleaner shrimp searches for parasites on the head of this spotted moray eel, Tulamben, Bali, Indonesia.
Two nudibranchs with two emperor shrimp riding on their backs, Tulamben, Bali, Indonesia.
A banded pipefish hovers above the substrait where it lives, Anilao, Philippines.
A giant jawfish brooding eggs in its mouth, Sea of Cortez, Mexico.
A manta ray passes overhead under the sun, Socorro Island, Mexico.
A reef squid hovers in mid-water, Anilao, Philippines.
A pregnant pygmy seahorse clings to a frond of a gorgonian fan, Anilao, Philippines.
A pod of four dolphins swim playfully near a popular coral reef in the Red Sea.
Schooling fish in vibrant yellow hover over a coral reef in Raja Ampat, Indonesia.
Huge table corals cover a reef in Indonesia that is teeming with fish, Raja Ampat, Indonesia.
An oceanic whitetip shark approaches from the blue waters around Elphinstone, Red Sea.
An orangethroat pike blenny (Chaenopsis alepidota), displays its colors in hopes of attracting a mate, Sea of Cortez.
A larval lionfish floats in the open ocean as plankton, Anilao, Philippines.
A porcelain crab broods eggs under its carapace, Raja Ampat, Indonesia.
A hawksbill turtle rests on a coral reef, Raja Ampat, Indonesia.
A cove contains thousands of glass fish and some black coral, Raja Ampat, Indonesia.
A damselfish being eaten by a lizardfish, Anilao, Philippines.
A female paper nautilus swims through the black water in search of a mate, Anilao, Philippines.
A seahorse clings to a soft coral in a bed of sand, Anilao, Philippines.
A tiny hard coral crab can be found burrowing in between the polyps of the coral, Anilao, Philippines.
A coconut octopus makes its way over a tangle of sea weed, Anilao, Philippines.
A snail about the size of a coin generally lives under the sand but comes out at night to feed, Anilao, Philippines.
A school of anthias darts around a coral reef, Anilao, Philippines.
A hawksbill sea turtle glides over the ocean floor, Maldives.
Two anemone fish make their home in a pink anemone, Maldives.
A school of yellow snapper hovers close to a coral reef, Maldives.
A nurse shark swims along a reef with a school of yellow snapper, Maldives.
A honeycomb eel emerges from its den and appears to smile, Maldives.
A giant manta ray (Mobula birostris) soars by under the sun, Socorro Island, Mexico.
A lionfish poses on a coral reef, Red Sea.
A coral bommie in the Red Sea at Yolanda Reef is full of anthias fish.
Three male Indo-Pacific bottlenose dolphins (Tursiops aduncus), and one female dolphin breeding, Red Sea.
Adult Antarctic fur seal (Arctocephalus gazella), in Ocean Harbor on South Georgia Island, Southern Ocean, Polar Regions
Fish barbecued with sticks at a stall in the Crab Market in this resort town famous for its seafood, Kep, Cambodia, Indochina, Southeast Asia, Asia
Adult female sea otter (Enhydra lutris kenyoni) eating urchins she has gathered off the sea floor in Inian Pass, Southeastern Alaska, Pacific Ocean, United States of America, North America